M4E1 Enhanced Complete Upper 14.5" 5.56 Mid-Length Barrel w/ Pinned Epsilon 556SL 12" M-LOK HG - Black - $429.95

Description

This Complete Upper includes Aero's Gen 2 Enhanced Handguard! Key features include the addition of quick disconnect sling sockets, enhanced milling design for grip and visual appeal and a new profile for the picatinny top rail.

Aero Precision has taken the pain out of building a legal 14.5" rifle build. These pinned and welded 14.5" complete uppers feature an Epsilon 556SL that is permanently affixed to the muzzle providing an overall legal length of 16". Worried you might want to change your gas block? No worries! The outer diameter of the Epsilon 556SL allows you to easily slide your gas block over the muzzle device making it easy to change or service your gas system.

If you've had a 14.5" build planned, but didn't want to deal with the hassle of getting it pinned and welded or being stuck with a specific configuration, then our 14.5 pinned and welded barrels/uppers are for you!

Includes:
M4E1 Assembled Upper Receiver
12" Gen 2 Enhanced M-LOK Handguard
14.5" 5.56 CMV Barrel
Low Profile Gas Block and Mid-Length Gas Tube
VG6 Epsilon 556SL (pinned and welded)
Product comes assembled
This complete upper does not include BCG or Charging Handle.
The muzzle brake that comes with this complete upper receiver is pinned this barrel. Per the National Firearms Act, the muzzle brake MUST be pinned and welded to achieve the necessary 16" as defined by the ATF for a rifle build.

M4E1 Upper Features:
Forged from 7075 T6 aluminum
Precision machined to M4E1 specs
M4 feedramps
Matte black hard coat anodized Mil 8625 Type 3 Class 2
Laser engraved T-marks
Comes assembled, with port door and forward assist installed
Accepts standard AR15/M16 components
Handguard mounting platform is forged into the receiver
Works with Aero Precision handguards but also fits most BAR-system handguards
Barrel nut and wrench are included

Gen 2 Enhanced Handguard Features:
1pc free float design
Built in anti-rotation tabs
Scalloped rails
Continuous top rail
1.78" inside diameter fits most muzzle devices and 1.5" suppressors
Compatible with low profile gas blocks
Gen 2 Feature - Quick disconnect sling socket at the 3, 6 and 9 o'clock positions
Gen 2 Feature - Additional milling along flats to aid with gripping and add visual appeal
Gen 2 Feature - New profile for the continuous picatinny top rail

14.5" 5.56 Mid-Length Barrel Features:
Chamber: 5.56
Length: 14.5"
Twist: 1 in 7
Threading: 1/2"x28
Material: Chrome Moly Vanadium
Finish: QPQ corrosion resistant finish both inside and out
Gas Block: .750
Gas Port: .0785
Gas System Length: Mid
Weight: 26oz
M4 Barrel Extension
HP and MPI Tested

SKU: 13476